Malicious PDF — malware analysis report

Heuristics 5

• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://traffset.ru/123?keyword=layers+of+the+atmosphere+game PDF link annotation

  • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/101086.pdfIn PDF document text
  • https://kudizuvawemexol.weebly.com/uploads/1/3/4/3/134307781/5457228.pdfIn PDF document text
  • https://repemigikaji.weebly.com/uploads/1/3/4/6/134608024/286479.pdfIn PDF document text
  • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/pugelo-nemalovunozo-boporaj-lemudom.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/bidivo/sevupoxafafizifevet.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/775b495b-9bba-4d69-9cdc-e6f090622f16/vojipuvud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d59c17ac-131b-4f07-949d-0cd9f1f93253/lawefumilenenikimo.pdfIn PDF document text
  • https://s3.amazonaws.com/lanorolowu/97633395496.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/mozitepikiwitedunu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a09b270-1956-4c79-98aa-05da775b9056/self_closing_valves.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6619a400-5de6-40cf-b5e0-338a1a64db76/52448672118.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/91005402-8571-45e7-b6e9-6cdb927fa595/23982477704.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/56d25839-f06c-47b7-9b4c-0d793c31fa30/internet_of_things_with_python_book.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c4ff9df6-2ef9-44d4-8712-1e35d8a185d8/nibamanenafixemaxosi.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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